He believes the lot has been vacant for 25 years, potentially more.
Dr. Roland responded to an article about Kevin Bayuk’s vacant lot mapping project in the San Francisco Chronicle
sftreemap.org Street Number 582 Street Name Rhode Island Zip Code 94107 Length of Frontage 50’ Depth of Lot 100’ Year Built 0 Zoning Class RH-2 Land Valuation $525,000 Most Recent Sale Price $390,000 Date of Most Recent Sale Apr 22, 1991
Sectors Organic Matter (low) Dogs Neighborhood View Concern Runoff Water Rocks Existing Garden Sunshine Wind Street Noise Community Interest/Curiosity Zoning and Permits Construction Community Gatherings Rocks Urbanite Mission Bay Development Residential Rainfall Construction Sand over Bedrock
Irrigation will be an issue between April and October.
Water * drought tips , California Department of Water Conservation, 1993 ** Drip Irrigation: For Every Landscape and All Climates , Robert Kourik, 1992 ***rssWeather.com Values are approximate and based off on planting and irrigation of 100% of square footage available on site. Actual values will vary depending upon water needs of species selection and actual planting design. JAN FEB MAR APR MAY JUN JUL AUG SEPT OCT NOV DEC Total Evapotranspiration* 0.06 0.08 0.10 0.13 0.15 0.16 0.17 0.15 0.13 0.10 0.07 0.05 Water Needs (gal.)** 6,632 5,990 10,994 14,243 18,441 17,846 22,165 18,441 17,846 10,994 6,418 6,632 156,642 Avg. Precip (in.)*** 4.72 4.15 3.40 1.25 0.54 0.13 0.04 0.09 0.28 1.19 3.31 3.18 22.28 Site Rainfall (gal.) 26,998 23,738 19,448 7,150 3,089 744 229 515 1,602 6,807 18,933 18,190 127,442 +/- 20,367 17,748 8,454 -7,093 -15,352 -17,103 -21,936 -17,926 -16,245 -4,187 12,515 11,558 -29,201 Sq. Ft. 5,720
On our initial site inspection the flora we found included Acacia sideroxylon, Quercus robusta (Oak) and Aesculus californica (Buckeye) in terms of trees. It is our belief the Oak and Buckeye were planted and the Acacia is a volunteer. The Oak and buckeye surviving indicate that the site does not get much water as one tree shuts down for our dry season (buckeye) and the other is drought tolerant after its first few years (oak).
The non-tree plants on the site are Dandelion, Clovers (Oxalis which we were told by a neighbor shows up each winter), some grass ground cover, fennel, malva parviflora (Mallow) and English Ivy. The presence of clover indicates a low level of nitrogen. We believe this to be true as the soil seems to consist of sand over bedrock with very little organic mater mixed in. The dandelion and mallow presence indicates that the property has been cultivated or tilled. We don’t believe this is the case here, but the area gets much human and animal traffic and the soil gets disturbed.
SEC. 209. USES PERMITTED IN R DISTRICTS. The uses listed in Sections 209.1 through 209.9 are permitted in R Districts as indicated by the following symbols in the respective columns for each district:
C: SEC. 209.5. OPEN RECREATION AND HORTICULTURE. (RH-2)
*(a) Open recreation area not publicly owned which is not screened from public view, has no structures other than those necessary and incidental to the open land use, is not operated as a gainful business and is devoted to outdoor recreation such as golf, tennis or riding.
**(b) Open space used for horticultural or passive recreational purposes which is not publicly owned and is not screened from public view, has no structures other than those necessary and incidental to the open land use, is not served by vehicles other than normal maintenance equipment, and has no retail or wholesale sales on the premises. Such open space may include but not necessarily be limited to a park, playground, plant nursery, rest area, community garden or neighborhood garden.
*(c) Greenhouse, plant nursery, truck garden or other land or structure devoted to cultivation of plants of any kind, either with or without retail or wholesale sales on the premises. (With respect to RC Districts, see also Section 209.9(d).) (Added by Ord. 443-78, App. 10/6/78)
*Subject to approval by the City Planning Commission as a conditional use in this district as provided in Section 303 of this Code / **Permitted as a principal use in this district.
Concept - Earth Care, People Care & Fair Share
Permaculture Showcase Site and Education through classes taught by permaculture designers and sign-age
Community Building - Encourage the neighborhood use of the site as a gathering place. Encourage neighborhood participation in the education, installation, harvests, and security.
Produce a yield for those that may not have regular access to locally grown food - Free Farm Stand and St. Gregory of Nyssa Food Pantry. Produce a market yield. Produce a yield of Permi-plants through development of a Propagation/Nursery system. Finally, measure all yields.
Video Documentation of the Transformation - Before and After
Media Attention for Permaculture, Local Food Production and Eco-awareness
San Francisco Policy - Use the site as precedent for setting San Francisco policy on the usage of vacant lots
Financially self-sufficient - Grants, Donations, Sale of Yields, % of Educational Inputs
Zones Zone 2: Neighboring Village Zone 1: Permaculture Showcase Zone 3: Potrero Hill/Mission Bay Zone 5: San Francisco Zone 4: Yield Recipients
Annuals: Chard, Kale, Garlic, Flava Beans, Potatoes, Carrots, Chinese Cabbage, Collards, Sweet Corn, Leeks, Swiss Chard, Tree Collards, Mustard Greens
Budget Sheet Mulch and Swale Source Cardboard $0.00 Whole Foods & Rainbow Grocery Cooperative Unfinished Compost $0.00 Bayview Green Waste Management Wood Chips $0.00 Tree Service Finished Soil $900.00 Broadmoor Lumber/Victory Gardens - 30 c.y. Straw $347.50 Half Moon Bay Feed & Fuel ($6.95/bale) Transportation $200.00 City Car Share Water ? Irrigation Irrigation System $300.00 Based of of $1000/acre estimate Water ? Flow Meter ? Mushroom Logs Non-Aromatic Hardwood $0.00 Ex. oak, poplar (cottonwood), elm, maple Plug Spawn $40.00 Fungi Perfecti (4 varieties) Plant Materials Trees & Shrubs $780.00 Flowers, Herbs, Perennials $300.00 Seeds $0.00 Tree - Farm Stand Compost Bin Palettes $0.00 Palette Bin Construction Hardware $10.00 Bee Hives Two Hives $200.00 Tools $50.00 Bees $160.00 SF Bee Keepers Association OPTIONAL Rainwater Storage HOG $5,712.00 21 Rain Water Hog Storage Tanks (987 Gallons) Inlet/Outlet Kit $18.00 Wall Kit $735.00
Timeline Sep ‘08 Oct Nov Dec Jan ‘09 Feb May Apr Mar Jun Jul Aug Sep ‘09 Present to Owner Planting: GC, Her, Shr, Mnr Reparative Planting Mushroom Installation / Oak Prn Irrigation Plan Finalized Compost Bin Construct Sheet Mulch / Swale Resource Allocation Comnty Education Planting: Nursery Stock Trees Swale / Bed Mntnc. Cob Bench Construct Cob Bench Construct Cob Bench Construct Bee Installation Grey / Rain Water Offset Herb Spiral Installation Plant Propagate PDC 2010 Tree Pruning Winter 2009 Spring 2010 Fall 2010 Summer 2010 Fall 2009 Irrigation Installation / GW offset Many Hands Work Area Mini Nursery Install Bee Installation Swale / Bed Mntnc. Grey / Rain Water Offset Grey /Rain Water Offset Swale / Bed Mntnc. Resource Allocation Resource Allocation Resource Allocation Resource Allocation Tree Grafting Planting: GC, Her, Shr, Mnr